问一个html调用php文件的有关问题
问一个html调用php文件的问题。
请问下面的html应该怎么写？
现在要写一个html页面，比如叫A.html吧。这个页面上有一个按钮，点击这个按钮后，要执行一个URL：
http:://xxxxxxx/xxxx.php.在这个xxxx.php中要得到A.html中传过来的一个参数字符串，取得的方法是$dddd = $_POST[0].请问这个我html应该怎么写？我写了一个，但是在xxxx.php取$_POST[0]，结果得到的值是空的，请问是怎么回事？谢谢回答。
------解决方案--------------------
在同一域名下么， http:://xxxxxxx 是自己的网站吗，是的话就form提交呗。
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